The Solar Bank Pro 3 is one of the most popular solutions for balcony power plants with storage. However, many users ask the same questions:

• How much power does the Solarbank Pro 3 deliver at the home mains output?

• How strong is the emergency power socket of the Solarbank Pro 3?

• Can I use both outputs at the same time?

• Does an extended battery provide more output power?

In this article we clarify the most important points about the Solarbank Pro 3 Performanceso that you can use your system optimally.

1. Solarbank Pro 3 home network output (AC output to the grid)

The Solar Bank Pro 3 has a home network output through which energy is fed into the home's own power grid.

• Maximum Performance: up to 1200W (technically possible, model dependent).

• This output is suitable for supplying the household via a normal socket.

Many users are looking for: “Solarbank Pro 3 home network performance” or “Solarbank Pro 3 maximum output power”Important: Even if 1200 W is technically possible, this value is shared with the emergency power socket.

2. Solarbank Pro 3 emergency power socket (backup terminal)

A real highlight of the Solarbank Pro 3 is the integrated emergency power outlet. It remains active even in the event of a power outage and allows devices to be operated directly from the solarbank – without the need for a home power supply.

• Maximum Performance: up to 1200 W (according to the FAQ also up to 2000 W for a short time, supplemented by the power grid).

• Typical applications: Kitchen appliances, air conditioners, computers or other consumers that should run independently of the home network.

In many forums the question arises whether the 800 W feed into the house network familiar with the Emergency power socket According to the official Anker FAQ:

• The solar bank feeds up to 800 W into the house network .

• At the off-grid output up to 2000 W devices operated However, any excess power will be automatically supplemented from the power grid.

👉 This means: A parallel use of the house network output and emergency power socket is possible, but the solar bank itself provides not the full 2800 W ready, but shares the load with the power grid.

3. Can the home network and emergency power be used simultaneously?

One of the most frequently asked questions about the Solarbank Pro 3 is:
👉 “Can I draw 800 W from the house mains + 1200 W from the emergency power socket and thus use more than 2000 W simultaneously?”

The answer: No.

The Solarbank Pro 3 works with a common performance pool.
The house network outlet and the emergency power socket share this power, so they are non-additive.

Examples of typical scenarios:

• Emergency power 600 W + house network 200 W = 800 W total

• Emergency power only = up to 1200W

• Home network only = maximum 800 W (feed-in limit)

👉 So if you are looking for “Solarbank Pro 3 double performance” should know: The outputs do not complement each other, but share the available total power.

This makes it clear: For the home network, there is a fixed upper limit of 800 W, while the emergency power socket can charge up to 1200 W can supply – but not in addition to the house grid feed.

4. Solarbank Pro 3 with extended battery (BP2700)

Many owners consider: “Does an extension battery provide more output power for the Solarbank Pro 3?”

Die Antwort: No, just faster charging.

• With an extension battery, the maximum charging input power from 1800 W to 3200 W.

• This means that the Solarbank Pro 3 can be charged significantly faster using solar modules or from the mains.

• The Output logic (house network + emergency power socket) remains unchanged – the shared pool of 1200 W still applies.

5. Common misunderstandings (Solarbank Pro 3 FAQ)

• ❌ “House network 800 W + emergency power 1200 W = 2000 W total power.”
  → Incorrect. Both outputs share the same inverter.

• ❌ “With an extended battery, the output power increases.”
  → False. The battery only increases the charging speed.

• ✅ "Solarbank Pro 3 offers flexibility: I can freely choose whether to feed the power into the home grid or connect devices directly to the emergency power socket."

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6. Conclusion: Solarbank Pro 3 performance in practice

The Solar Bank Pro 3 It impresses with its flexibility and ease of use. However, it's important to know:

• Maximum output power = 1200 W (House network + emergency power together).

• Both outputs can be used independently but share the same power limit.

• With Extension battery (BP2700) the charging power increases, but not the usable output power.

So if you are looking for “Solarbank Pro 3 maximum performance”, “Solarbank Pro 3 emergency power socket” or Solarbank Pro 3 with extended battery is looking for, you will find the clear answer here:
👉 Power pool of 1200 W, flexibly distributable – not additive.

Source reference:

Some information and examples mentioned in this article are based on discussions from the community, especially from the forum r/Balkonkraftwerk.

Some information in this article is based on official Anker documentation and community discussions, including the FAQ “Can I charge my electric car with the Solarbank 3 E2700 Pro?” (Anchor Support)